Abstract: The pyrolysis experiments of low rank coal (LRC)，enteromorpha (EN) and their blends were performed in a special prolysis equipment. The maximum tar yield of blends was 11.39% with a EN ratio of 30%，which was increased by 28.61% compared to LRC pyrolysis alone and by 8.87% compared to calculated value. Thermogravimetric analysis (TGA) of LRC，EN and their blends indicated significant synergistic effect in the co-pyrolysis process of LRC and EN at 240—750℃. The relative maximum value of synergistic effect was 18.5%. Kinetics analysis showed compensation effect between activation energy and pre-exponential factor of co-pyrolysis. Blending of LRC and EN enhanced reactivity and lowered reaction rate. Synergistic effect mainly was reflected in enhancing the reactivity of co-pyrolysis.

Key words: low rank coal, enteromorpha, co-pyrolysis, kinetics, synergistic effect

摘要： 采用自行设计低温干馏装置对不同配比的低阶煤（LRC）和浒苔（EN）进行低温干馏实验，发现在浒苔配入量为30%时，焦油的产率达到最大值11.39%，比煤单独热解提高了28.61%，比理论加权值提高了8.87%。对低阶煤、浒苔及浒苔配入量为30%的混合样进行热重分析，发现低阶煤与浒苔共热解时在240～750℃段存在明显的协同效应，且其相对最大值达18.5%。动力学分析表明，混合热解时活化能与指前因子之间存在补偿效应，两者混合使反应活性增大，反应速率降低，协同作用主要表现在使共热解反应活性增大。

关键词: 低阶煤, 浒苔, 共热解, 动力学, 协同作用